A Statement of Work (SOW) is a contract document that defines the scope, deliverables, timelines, responsibilities, and pricing for services provided on a project.
In clinical research, SOWs are used with CROs, central labs, imaging vendors, eCOA providers, and other trial partners. A clear SOW reduces operational ambiguity by specifying performance standards, communication expectations, and change-order processes. SOW alignment with the protocol and project plan helps prevent budget overruns and timeline slippage. Well-defined SOWs support vendor oversight and more predictable trial execution.